“Until a few months ago, Mercer, 71, ran what is arguably the world’s most successful hedge fund. He employs a phalanx of servants and bodyguards and owns a 203-foot yacht named Sea Owl. He was the money behind Breitbart News and Steve Bannon, whose fiery populism helped propel Trump to the White House, as well as the data firm Cambridge Analytica, which shaped the campaign’s messages. Shortly after the election, Mercer donned a top hat and welcomed the president-elect to a costume party at his seaside mansion on Long Island. What was a guy like that doing in the desert, wearing a gun and a shiny badge?” In Businessweek, Zach Mider shares the wild story of Robert Mercer’s Secret Adventure as a New Mexico Cop.